The user learns about factors, multiples, prime and composite numbers, and how to find factors and multiples of given numbers. After veiwing examples, users can interactively practice factoring numbers.

This material is based upon work supported by the
National Science Foundation under Grant DUE-0226284.
Any opinions, findings, and conclusions or recommendations
expressed in this material are those of the author(s)
and do not necessarily reflect the views of the
National Science Foundation.